The Tiniest Invaders BOOK II Meandering Menace

Earth is in trouble. Not just one intelligent alien race, but two, are working to deal with our planet's number one problem- Those Crazy Humans. The very few humans who have learned of their schemes have chosen to work with the aliens who are very tiny and far less inclined to disintegrate people who get in their way.
They operate a wide range of ingenious, highly sophisticated vehicles that appear quite ordinary. Some of them include insects, squirrels, birds, and a very special one that resembles a young teenage girl that operates under the name Betty White.

The other race is made up of a species who has been stranded on Earth for a very, very long time. The remnant of their civilization are trapped on a planet that very soon will be swallowed up by an expanding Red Giant Sun. Throughout the centuries they've tried to open a doorway or portal many times to allow them to come to Earth. Every attempt failed or only briefly partially worked. But with time running out they've decided a more drastic, and perhaps catastrophic for everyone, approach is called for.